Unsafe Mobile Code: Dangerous Array Declaration - Revision history

KirstenS at 23:34, 7 April 2009

2009-04-07T23:34:15Z

KirstenS at 16:35, 17 February 2009

2009-02-17T16:35:42Z

KirstenS at 14:21, 9 November 2008

2008-11-09T14:21:39Z

KirstenS at 13:16, 13 October 2008

2008-10-13T13:16:23Z

KirstenS at 13:45, 3 October 2008

2008-10-03T13:45:31Z

Weilin Zhong: Contents from Fortify.

2006-07-21T17:25:17Z

Contents from Fortify.

New page

{{Template:Vulnerability}}
{{Template:Fortify}}

==Abstract==

The program violates secure coding principles for mobile code by declaring an array public, final and static.

==Description==

In most cases an array declared public, final and static is a bug. Because arrays are mutable objects, the final constraint requires that the array object itself be assigned only once, but makes no guarantees about the values of the array elements. Since the array is public, a malicious program can change the values stored in the array. In most situations the array should be made private.

For more details about mobile code and its security concerns, please see [[:Category:Unsafe Mobile Code]].

==Examples ==

The following Java Applet code mistakenly declares an array public, final and static.

<pre>
public final class urlTool extends Applet {
public final static URL[] urls;
...
}
</pre>

==Related Threats==

==Related Attacks==

==Related Vulnerabilities==

==Related Countermeasures==

==Categories==

[[Category:Code Quality Vulnerability]]

[[Category:Access Control Vulnerability]]

[[Category:Unsafe Mobile Code]]

[[Category:Java]]

[[Category:Implementation]]

[[Category:Code Snippet]]

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 ==Description==
 In most cases an array declared public, final and static is a bug. Because arrays are mutable objects, the final constraint requires that the array object itself be assigned only once, but makes no guarantees about the values of the array elements. Since the array is public, a malicious program can change the values stored in the array. In most situations the array should be made private.
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 For more details about mobile code and its security concerns, please see [[:Category:Unsafe Mobile Code]].
 ==Examples ==
 The following Java Applet code mistakenly declares an array public, final and static.
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 </pre>
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+Authorization Vulnerability
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+Authentication Vulnerability
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+Concurrency Vulnerability
-==Categories==
+Configuration Vulnerability
 [[Category:Code Quality Vulnerability]]
 [[Category:Access Control Vulnerability]]
 [[Category:Unsafe Mobile Code]]
 [[Category:Java]]
 [[Category:Implementation]]
 [[Category:Code Snippet]]